proctodeum

[ prok-tuh-dee-uh m ]
/ ˌprɒk təˈdi əm /

noun, plural proc·to·de·a [prok-tuh-dee-uh] /ˌprɒk təˈdi ə/, proc·to·de·ums. Embryology.

a depression in the ectoderm of the anal region of a young embryo, which develops into part of the anal canal.

Origin of proctodeum

1875–80; < New Latin < Greek prōkt- proct- + New Latin -odeum < Greek hodaîon, neuter of hodaîos on or by the way; see -ode2, -eum

OTHER WORDS FROM proctodeum

proc·to·de·al, adjective

Medical definitions for proctodeal (1 of 2)

proctodeal
[ prŏk′tə-dēəl ]

adj.

Of or relating to the proctodeum.

Medical definitions for proctodeal (2 of 2)

proctodeum

n. pl. proc•to•de•ums

An inward fold on the surface of the embryonic ectoderm that develops into part of the anal passage. anal pit